/*
 * The contents of this web application are subject to the Mozilla Public License Version 
 * 1.1 (the "License"); you may not use this web application except in compliance with 
 * the License. You may obtain a copy of the License at http://www.mozilla.org/MPL/.
 * 
 * Software distributed under the License is distributed on an "AS IS" basis, 
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 
 * for the specific language governing rights and limitations under the License.
 * 
 * The Original Code is owned by and the Initial Developer of the Original Code is 
 * Composite A/S (Danish business reg.no. 21744409). All Rights Reserved
 * 
 * Section 11 of the License is EXPRESSLY amended to include a provision stating 
 * that any dispute, including but not limited to disputes related to the enforcement 
 * of the License, to which Composite A/S as owner of the Original Code, as Initial 
 * Developer or in any other role, becomes a part to shall be governed by Danish law 
 * and be initiated before the Copenhagen City Court ("K�benhavns Byret")            
 */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;
using Composite.Data;
using Composite.Versioning.ContentVersioning.Data;
using Composite.Data.Types;
using Composite.Core.IO;
using Composite.Core;

namespace Composite.Versioning.ContentVersioning.Cleaner
{
	/// <summary>
	/// Extensions for Xml.Linq v1.0
	/// </summary>
	internal static class CleanerExtensions
	{
		//public static string AttributeValue(this XElement element, XName attributeName)
		//{
		//    return element.Attributes(attributeName).Select(d => d.Value).FirstOrDefault();
		//}

		//public static string ElementValue(this XElement element, XName elementName)
		//{
		//    return element.Elements(elementName).Select(d => d.Value).FirstOrDefault();
		//}

		//public static IEnumerable<T> NotNull<T>(this IEnumerable<T> source)
		//{
		//    return source.Where(d => d != null);
		//}

		public static void DeleteActivity(this DataConnection conn, Guid activityId, DataSourceId dataSourceId)
		{
			try
			{
				var activity = conn.Get<IActivity>().Where(d => d.Id == activityId).FirstOrDefault();

				var activityChanges = conn.Get<IDataChanges>().Where(d => d.ActivityId == activityId).ToList();

				if (dataSourceId != null)
				{
					if (dataSourceId.InterfaceType == typeof(IMediaFile))
					{
						try
						{
							var mediaFileId = dataSourceId.DataId.GetProperty<Guid>("Id");
							var mediaFileActivityPath = CleanerFacade.GetMediaFileActivityPath(mediaFileId, activityId);
							C1File.Delete(mediaFileActivityPath);
						}
						catch (Exception e)
						{
							Log.LogWarning(CleanerFacade.Title, e);
						}
					}
				}

				conn.Delete<IDataChanges>(activityChanges);
				conn.Delete(activity);

				Log.LogVerbose(CleanerFacade.Title, "Delete activity '{0}'".Push(activityId));
			}
			catch
			{ }

		}

		public static string Push(this string format, params object[] args)
		{
			return string.Format(format, args);
		}
	}
}
